Electronic photographic copying machine

ABSTRACT

An electrophotographic copying machine including a repetitively usable photosensitive member removably mounted in the machine and having a plurality of image processing elements including an image transfer device disposed around the photosensitive member. The photosensitive member is mounted within a first body portion of the machine, while the transfer device is mounted in a removable second body portion of the machine, whereby the photosensitive member is accessible for removal when the two body portions are separated.

United States Patent Takahashi et al.

[451 May 13, 1975 [54] ELECTRONIC PHOTOGRAPHIC COPYING 3.490342 1/1970 Reick et a1 355/10 3.575506 4/1971 Knechtel r. 355/16 MACHINE 3,600,082 8/l97l Knechtel r r r i r 355/8 [75] Inventors: lsao T ka hi. Yokohama; 1604,79? 9/1971 Szczesniak 355/16 Motoharu Fujii, Tokyo; Kazuo 1770.345 11/1973 Kawakubo et a1. 355/] R Kawakubo, Tokyo: Masao Ariga. T r t Y; Li 3 i:i guglura 1 O PI'HHUI Exammcr]hn M. Horan Allurnry. Agent. or FirmFitzpatrick, Cella. Harper {73] Assignee: Canon Kabushiki Kaisha. Tokyo, & s im Japan [22] Filed: July 23, I973 [57] ABSTRACT [2]] Appl. No.; 381,399

Related US. Application Data An ele ctrophotographic copying machine including a 2 {S N H 276 D 23 971 repetitively usable photosensitive member removably [6 Dwlslono mounted in the machine and having a plurality of image processing elements including an image transfer [30] Forelgn Apphcauon Prmnty Dam device disposed around the photosensitive member Japan The photosensitive member is mounted within a first body portion of the machine, while the transfer device [52] U.S. Cl .i 355/3 R is mounted i a removaue Second body portion f the H 1 Cl 8 /00 machine, whereby the photosensitive member is ac- [58] new of Search 355/3 14 cessible for removal when the two body portions are separated. [56] References Cited UNITED STATES PATENTS 1 Claim, Drawing Figures 3,088,386 S/l963 Sugarman 355/ll 7 85 86 a 83 5 O O I 46 98 97 8481 8 94 78 P 79 O z 7 -96 ll 37 I2 0 38 2 9 L 9 921 92 39 4 4F I I 4 i7 1\ t (.JENTEJWIWQE} 3.883.242

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FIG. 6

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1. An electrophotographic copying machine comprising a repetitively usable electrophotographic photosensitive member; a group of elements including an electrostatic latent image forming means, developing means, transferring means and cleaning means, said elements being disposed sequentially around said photosensitive member, and said developing means and cleaning means being contactable with said photosensitive member; transfer material feeding means; fixing means; a lower main body portion for supporting said photosensitive member, electrostatic latent image forming means, developing means and cleaning means; and an upper main body portion for supporting said transferring means and said fixing means wherein, upon separation of said lower and upper main body portions, said photosensitive member and a path for the transfer material are accessible. 